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We investigate transverse symmetry-breaking instabilities emerging from the optomechanical coupling between light and the translational degrees of freedom of a collisionless, damping-free gas of cold, two-level atoms. We develop a kinetic theory that can also be mapped on to the case of an electron plasma under ponderomotive forces. A general criterion for the existence and spatial scale of transverse instabilities is identified; in particular, we demonstrate that monotonically decreasing velocity distribution functions are always unstable.
|Number of pages||5|
|Journal||Physical Review Letters|
|Early online date||29 Jan 2014|
|Publication status||Published - 29 Jan 2014|
- transverse symmetry-breaking instabilities
- kinetic theory
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- Physics - Senior Lecturer
- Ocean, Air and Space
- 1 Finished
Modelling Condensed Matter Systems with Quantum Gases in Optical Cavities
EPSRC (Engineering and Physical Sciences Research Council)
1/10/10 → 31/10/14